López II, Solís OAM, López SV, García RDL, Lozano NJJ

Language: Spanish
References: 14
Page: 123-129
PDF size: 355.02 Kb.

ABSTRACT

Background: In March 2009 was reported in Mexico City the infection of influenza A H1N1 since that time continues to affect patients of working age and is still fatal when medical care is delayed.
Objective: To determine the epidemiological profile of the infection of influenza A H1N1 in a concentration Hospital of the Secretary of Health of the Mexico City (FDHS) and provide useful information for early detection of cases.
Material and method: This was a retrospective, descriptive study, records were reviewed epidemiological and trace files of patients admitted to the General Hospital Dr. Enrique Cabrera of the FDHS from 17 April to 20 September 2009, on suspicion of infection of virus influenza A H1N1; for statistical analysis was calculated frequencies, averages, percentages.
Results: 167 patients with suspected infection of virus influenza A H1N1, 48.5% were female and 51.5% men, mean age of 36.8 years; to 159 (95.2%) patients had throat swabs taken for the determination of the virus by PCR (polymerase chain reaction) in real time, reporting: 61 (38.36%) positive for infection of virus influenza A H1N1, 15 (9.43%) were positive for Influenza A seasonal, 76 (47.79%) negative, 1 (0.62%) indeterminate and 6 (3.77%) pending results, 5 patients were physicians, with negative PCR. The 90.41% (151 patients) were rooted in the Federal District, the largest number of cases came from the delegations: Alvaro Obregon 31.73%, Iztapalapa 11.37% and Gustavo A Madero 10.17%. Was predominant symptoms: cough (85.2%), fever (78.6%), malaise (73.7%) and dyspnea (72.2%). The kind of occupation most frecuent were: housewife 40.98%, employees 14.75% and merchants 13.11%. Patients with infection of virus influenza A H1N1 only one received the vaccine for seasonal influenza A in the 2008. 39.3% had co-morbidity: diabetes mellitus, hypertension, renal failure, obesity, among others. 56% were treated in Internal Medicine, 13% in Intensive Care, 11% in floor of General Surgery, 0.6% in Gynecology and 19% in the emergency.
Conclusions: To know the epidemiological profile of the infection of virus influenza A H1N1 can help the early clinical diagnosis and management, avoiding respiratory complications what can be fatal and increase security measures for certain population groups according to their occupation. The infection of virus influenza A H1N1 is apparently underestimated by the delay in sampling and late reporting of confirmatory test.

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